# Harmony Cloud Pro vs Windtone by Sonofield

The clearest difference is in-app purchases: Windtone by Sonofield at none against Harmony Cloud Pro's 2. Windtone by Sonofield also leads on review sentiment (100% vs 87%). Harmony Cloud Pro's advantage is ratings volume (65 vs 15). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Harmony Cloud Pro sells 2 in-app purchases, starting at $5.99 per month. Windtone by Sonofield asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Harmony Cloud Pro against 4.9 for Windtone by Sonofield. Both are backed by a comparable volume of ratings — 65 and 15 respectively. Written reviews are what separate them: 87% of Harmony Cloud Pro's written reviews are positive against 100% of Windtone by Sonofield's.

Harmony Cloud Pro ships an update weekly, Windtone by Sonofield every 5 days. Both last shipped on September 23, 2026.

## The numbers

| Metric | Harmony Cloud Pro | Windtone by Sonofield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (65 ratings)](https://appshunter.io/ios/app/harmony-cloud-pro/id6748590924/reviews)** | [4.9 (15 ratings)](https://appshunter.io/ios/app/windtone-by-sonofield/id6772116401/reviews) |
| Number of ratings | **65** | 15 |
| Positive reviews | 86.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 194 MB | 29 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Melodic Progression Institute LLC](https://appshunter.io/developer/1054588451) | [Sonofield Ear Trainer Education Ltd.](https://appshunter.io/developer/1789801335) |

## What reviewers say

### Harmony Cloud Pro

[App page](https://appshunter.io/ios/app/harmony-cloud-pro/id6748590924)

This app helps musicians of all levels develop their ear for harmony and improvisation. It generates endless, unpredictable chord progressions based on user-selected chords, allowing for personalized learning and exploration of musical concepts.

**Highlights:** Ear training for musicians, Improvisation exploration, Generates unpredictable chord progressions, Customizable tempo, volume, and key, Tailorable to all skill levels, Patented harmonic algorithm

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Annual | $59.99 | per year |


### Windtone by Sonofield

[App page](https://appshunter.io/ios/app/windtone-by-sonofield/id6772116401)

This app offers a meditative ear training experience for musicians. It generates endless wind-chime melodies based on chosen scales, with adjustable complexity and real-time note labels. Enjoy a relaxing practice environment with natural ambiences and a tonic reference.

**Highlights:** Scale degree recognition, Over 30 preset scales, Real-time note labels, Adjustable melodic complexity, Natural background ambiences, Tonic reference chime, Playable chimes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Harmony Cloud Pro free?

Harmony Cloud Pro is free to download, with in-app purchases available.

### Is Windtone by Sonofield free?

Windtone by Sonofield is free to download, with no in-app purchases.

### Which has better reviews, Harmony Cloud Pro or Windtone by Sonofield?

Harmony Cloud Pro is rated higher. Harmony Cloud Pro averages 5.0 out of 5 from 65 ratings, while Windtone by Sonofield averages 4.9 from 15 ratings.

### Do Harmony Cloud Pro or Windtone by Sonofield have ads?

Neither Harmony Cloud Pro nor Windtone by Sonofield shows ads.

### Which is updated more often, Harmony Cloud Pro or Windtone by Sonofield?

Harmony Cloud Pro ships an update weekly, and Windtone by Sonofield every 5 days. Most recently, Harmony Cloud Pro was updated on September 23, 2026 and Windtone by Sonofield on September 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*